To where, exactly? Not outside of Foundation sites I hope? SCP objects should not be allowed any contact with the outside world, because that's a security breach. SCP objects should not be allowed out of their containment when not being transported, and should not be given access to other SCP objects, because that is a containment breach. SCP objects that lash out at staff are to be smacked down as brutally as necessary, not appeased, because to do otherwise is a failure to protect against it.

Addendum: On September ██, 20██ approval was gained to cross-test SCP-xxxx with SCP-374. The following are the results.

Addendum: Following the results of the experiment on 09/██/20██, it has been decided that SCP-xxxx is not to be cross-tested with any other "similar" SCP's including but not limited to SCP-374, SCP-565, and SCP-2805.

These crosslinks are a bit…hamfisted and dangerous in universe. Think about it:

So, rather than writing an object like an encyclopedia entry for its own sake, think of the story that you're telling with the document. Give the reader a sense of immersion, of what happened when recovering and containing it. Give them a taste of what happened behind the procedures, if you will. Make them emotionally invested as they read and continue reading. Give your reader a reason to think about the bigger picture, what's going on behind the scenes.

Focus on characterising the entity and building a narrative around it through backstory, interactions with Foundation staff, etc. You may want to try a different concept though, as writing a humanoid monster is difficult for even veteran writers due to the need for a novel twist and execution.